Image capturing and processing device, electronic instrument, image capturing and processing method, and recording medium

ABSTRACT

The present invention has an object to enable an improvement in accuracy of face detection and obtain an optimum image in which focus and exposure are adjusted in conformity with a detected face. An image capture processing device (50) of one mode of the present invention includes: a face detection section (40) configured to perform face detection so as to detect a face from an image of a subject, the image being captured by an auxiliary image capture section 20 which captures the image of the subject; and a control section (30) configured to control, on the basis of a result of the face detection, a main image capture section (10) to capture an image of the subject.

TECHNICAL FIELD

The present invention relates to an image capture processing device, anelectronic device, an image capture processing method, and a program forcontrolling the image capture processing device.

BACKGROUND ART

An image capture device disclosed in Patent Literature 1 is known as acamera which has a face detection (face recognition) function of readingout an image from an image sensing element and analyzing information ofcharacteristics of the image so as to detect face information. The imagecapture device of Patent Literature 1 has, as photometry modes, anevaluation photometry mode and an average photometry mode. The imagecapture device performs a photometry processing and an exposure controlin accordance with a photometry mode set by a user. Even when theevaluation photometry mode has been set, the image capture deviceoperates in the average photometry mode until a start of autofocus. Bythus setting the average photometry mode, in which photometry of anaverage brightness of the entire screen is performed so as to controlexposure, it is easy to detect a face even in a case where the face isin a region (e.g., at an edge of the screen) at which exposure isinappropriate.

CITATION LIST Patent Literature

[Patent Literature 1]

Japanese Patent Application Publication, Tokukai, No. 2015-167308 A(Publication Date: Sep. 24, 2015)

SUMMARY OF INVENTION Technical Problem

However, the technique according to the image capture device of PatentLiterature 1 has the following problem. In a case where no face ispresent within an angle of view during an average photometry mode but aface later comes into the angle of view after the average photometrymode (e.g., in a case where an image of a moving subject is to becaptured), face detection is not possible.

The present invention is accomplished in view of the foregoing problem.An object of the present invention is to provide an image captureprocessing device, an electronic device, an image capture processingmethod, and a program for controlling the image capture processingdevice each enabling an improvement in accuracy of face detection andallowing obtaining an optimum image in which focus and exposure areadjusted in conformity with a detected face.

Solution to Problem

In order to attain the object, an image capture processing device inaccordance with one aspect of the present invention is an image captureprocessing device including: a face detection section configured toperform face detection so as to detect a face from an image of asubject, the image being captured by a first image capture section whichcaptures the image of the subject; and a control section configured tocontrol, on the basis of a result of the face detection performed by theface detection section, a second image capture section to capture animage of the subject, the second image capture section being differentfrom the first image capture section.

Further, in order to attain the object, an electronic device inaccordance with one aspect of the present invention is an electronicdevice including: the above-described image capture processing device;the first image capture section; and the second image capture section.

Further, in order to attain the object, an image capture processingmethod in accordance with one aspect of the present invention is animage capture processing method including: a face detection step ofperforming face detection so as to detect a face from an image of asubject, the image being captured by a first image capture section whichcaptures the image of the subject; and a control step of controlling, onthe basis of a result of the face detection performed in the facedetection step, a second image capture section to capture an image ofthe subject, the second image capture section being different from thefirst image capture section.

Further, in order to attain the object, a program, in accordance withone aspect of the present invention, for controlling the image captureprocessing device is a program for controlling an image captureprocessing device, the program being configured to cause a computer tofunction as each section of the image capture processing device.

Advantageous Effects of Invention

According to the one aspects of the present invention, the first imagecapture section can be always used for face detection. This enables animprovement in accuracy of face detection and allows obtaining anoptimum image in which focus and exposure are adjusted in conformitywith a detected face.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a block diagram illustrating a configuration of one mode(Embodiment 1) of an image capture processing device in accordance withthe present invention together with a configuration of a twin-lens imagecapture device which is one mode (Embodiment 1) of an electronic devicein accordance with the present invention.

FIG. 2 is a view showing a flowchart of a processing carried out by thetwin-lens image capture device of FIG. 1.

FIG. 3 is a view showing another embodiment (Embodiment 2) of theflowchart of the processing carried out by the twin-lens image capturedevice of FIG. 1.

FIG. 4 is a view showing another embodiment (Embodiment 3) of theflowchart of the processing carried out by the twin-lens image capturedevice of FIG. 1.

FIG. 5 is a block diagram illustrating a configuration of one mode(Embodiment 4) of an image capture processing device in accordance withthe present invention together with a configuration of a twin-lens imagecapture device which is one mode (Embodiment 1) of the electronic devicein accordance with the present invention.

DESCRIPTION OF EMBODIMENTS Embodiment 1

The following description will discuss Embodiment 1 of the presentinvention with reference to FIGS. 1 and 2. Note that, in Embodiment 1, atwin-lens image capture device will be discussed as one mode of anelectronic device in accordance with the present invention, and thedescription will discuss an aspect in which the twin-lens image capturedevice includes one mode of an image capture processing device inaccordance with the present invention.

FIG. 1 is a block diagram illustrating a configuration of a twin-lensimage capture device 1 (electronic device) in Embodiment 1.

The twin-lens image capture device 1 of Embodiment 1 is a digital camerawhich is capable of capturing images of a subject from respective twoviewpoints of a right eye and a left eye. Note that, as an image capturedevice which captures images from two viewpoints, an image capturedevice which creates a three-dimensional video is generally known. Thetwin-lens image capture device 1 of Embodiment 1 is also capable ofcreating a three-dimensional video by using a main image capture section10 and an auxiliary image capture section 20 as two viewpoints of aright eye and a left eye, respectively. However, as described later, thetwin-lens image capture device 1 of Embodiment 1 uses one of the twoimage capture sections as an image capture section dedicated for facedetection, thereby always performing face detection so as to increaseaccuracy of face detection, and uses the other of the two image capturesections to obtain an optimum image in which focus and exposure areadjusted in conformity with a detected face.

Accordingly, the twin-lens image capture device 1 of Embodiment 1includes, as illustrated in FIG. 1, the main image capture section 10(second image capture section), the auxiliary image capture section 20(first image capture section), an image capture processing device 50including a control section 30 and a face detection section 40, and adisplay section 60.

(Main Image Capture Section 10 and Auxiliary Image Capture Section 20)

Each of the main image capture section 10 and the auxiliary imagecapture section 20 can be realized by means of an optical system and animage sensing element (CCD (Charge Couple Devices), CMOS (ComplementaryMetal-Oxide-Semiconductor), or the like). As described later, the mainimage capture section 10 is an image capturing camera which captures animage of a subject, and the auxiliary image capture section 20 is a facedetection camera which is used solely for face detection.

Since the auxiliary image capture section 20 is a face detection camera,the auxiliary image capture section 20 may have a smaller number ofpixels that those of the main image capture section 10. Specifically,the main image capture section 10 and the auxiliary image capturesection 20 may be configured to have 20 M pixels and 5 M pixels,respectively. Setting the number of the pixels of the auxiliary imagecapture section 20 small enables a cost reduction, while setting thenumber of the pixels of the main image capture section 10 large allowsgenerating high quality image data having a high image quality.

Note that the main image capture section 10 and the auxiliary imagecapture section 20 are capable of capturing a moving image as well ascapturing a still image. The description below will be concerned withcapturing of a still image, unless otherwise specified.

(Image Capture Processing Device 50)

The image capture processing device 50 includes (i) the face detectionsection 40 which detects a face from an image captured by the firstimage capture section which captures an image of a subject and (ii) thecontrol section 30 which, on the basis of a result of face detectioncarried out by the face detection section, performs a control so that animage of the subject is captured by the main image capture section 10,which is different from the auxiliary image capture section 20.

(Control Section 30)

The control section 30 includes a capture control section 31 and animage processing section 32 as illustrated in FIG. 1.

The capture control section 31 outputs, to each of the main imagecapture section 10 and the auxiliary image capture section 20, a controlsignal for controlling exposure and focus, a timing signal (clockpulse), and the like.

The image processing section 32 receives face region information (facedetection result) notified from the face detection section 40, obtainsimage data outputted from the main image capture section 10, performsimage processing on the image data, and causes the image data thusprocessed to be displayed on the display section 60.

More specifically, the image processing section 32 is notified of theface region information (face detection result) on a face regiondetected by the face detection section 40, and the image processingsection 32 in response generates, in accordance with the notification,information of exposure and focus that are appropriate for the faceregion. The image processing section 32 outputs the information thusgenerated to the capture control section 31. On the basis of theinformation, the capture control section 31 generates a control signalfor controlling exposure and focus of the main image capture section 10,and outputs the control signal to the main image capture section 10.Determination of appropriate exposure and focus can be carried out by aknown method. Note that exposure and focus of the auxiliary imagecapture section 20 are determined in accordance with a luminance value(brightness) of a face-detected area and a contrast value of theface-detected area, respectively.

(Face Detection Section 40)

The face detection section 40 obtains image data outputted from theauxiliary image capture section 20, and performs a face detectionprocessing on the image data so as to detect a face region of a personincluded in the image. The face detection processing is performed withuse of a known algorithm. For example, by means of a known processingfor extracting a feature point, the face detection section 40 extracts,from data of a through-the-lens image or a captured image, featurepoints such as end points of an eye, a nose, and a mouse and pointsalong an outline of a face, and detects a face region on the basis ofthese feature points.

(Display Section 60)

The display section 60 can be a known display means which is included ina digital camera. The display section 60 displays mainly (i) an imagewhich is based on image data generated by the main image capture section10 and (ii) an indication, indicated clearly over the image, of a faceregion detected by the auxiliary image capture section 20. Note that thedisplay section 60 may be of a touch panel type, and can accept aninstruction from a user (a user of the twin-lens image capture device1).

Note that the twin-lens image capture device 1 of Embodiment 1 includesnot only the above-described configurations but also otherconfigurations such as, for example, an operation button and a powerbutton. In Embodiment 1, descriptions on those configurations areomitted, and characteristic configurations of the present invention aswell as configurations related to such characteristic configurations arediscussed.

<Processing Flow>

With reference to FIG. 2, the following description will discuss aprocessing flow (image capture processing method) of the image captureprocessing device 50 included in the twin-lens image capture device 1 ofEmbodiment 1. FIG. 2 is a flowchart of the image capture processingdevice 50.

In a case where the main image capture section 10 and the auxiliaryimage capture section 20 detect a subject while the twin-lens imagecapture device 1 has been turned on (step S101), the capture controlsection 31 controls the auxiliary image capture section 20 to have anexposure condition appropriate for performing face detection.Specifically, the auxiliary image capture section 20 is controlled sothat the main image capture section 10 has an exposure higher than thatof the auxiliary image capture section 20 (step S102). Increasing theexposure of the auxiliary image capture section 20 which performs facedetection enables facilitating the face detection. Once the exposurecondition of the auxiliary image capture section 20 is controlled, theprocess proceeds to step S103.

At step S103 (face detection step), the face detection section 40, whichhas obtained image data of the subject generated by the auxiliary imagecapture section 20, determines whether or not a face region is includedin the image. In a case where a face region is detected (Yes at stepS103), the process proceeds to step S104. Meanwhile, in a case where theface detection section 40 which has obtained the image data of thesubject generated by the auxiliary image capture section 20 detects noface region in the image at step S103 (No at step S103), the processproceeds to step S105.

At step S104 (control step), the face detection section 40 notifies theimage processing section 32 of the face region, and the capture controlsection 31 adjusts the exposure of the main image capture section 10 sothat the exposure is appropriate for the face region.

At step S105, data of a captured image of the subject generated by themain image capture section 10 is subjected to a predetermined pixelinterpolation processing and a predetermined color conversion processingby the image processing section 32, and then is displayed on the displaysection 60. Note here that, in a case where the main image capturesection 10 was adjusted at previous step S104 so as to make exposure forthe face region appropriate, an optimum image in which the focus andexposure are adjusted in conformity with the detected face is generatedby the main image capture section 10 at step S105. Meanwhile, in a casewhere no face was detected at step S103, an image is generated by themain image capture section 10 at step S105 through a control of theexposure and focus of the main image capture section 10 in accordancewith information of an exposure area and an AF detection area which areset in the capture control section 31. For example, in a case where botha setting of the exposure area and a setting of the AF detection areaare center-focused, the exposure and a focus position are adjusted inconformity with a subject appearing in a center of the screen.

Thus, according to Embodiment 1, the auxiliary image capture section 20is used solely for face detection and capturing of an image of a subjectis performed by the main image capture section 10. Accordingly, even ina case as experienced by conventional techniques where no face isincluded in an angle of view at first but a face later comes into theangle of view, the face is successfully detected. This enables animprovement in accuracy of face detection, and allows obtaining anoptimum image in which focus and exposure are adjusted in conformitywith a detected face.

Note that the description above of Embodiment 1 discussed the twin-lensimage capture device 1 which uses the main image capture section 10 as aright eye and the auxiliary image capture section 20 as a left eye (orthe auxiliary image capture section 20 and the main image capturesection 10 can be used as a right eye and a left eye, respectively).Note, however, that the present invention is not limited to this, andcan employ a configuration in which the two viewpoints are located aboveand below each other.

Further, the present invention encompasses an aspect in which an imageof a subject is captured from three or more viewpoints.

In short, according to the present invention, an optimum image isobtained by using one of a plurality of image capture sections as animage capture section for face detection and using other one(s) of theplurality of image capture sections to capture, on the basis of a resultof the face detection, an image in which focus and exposure are adjustedin conformity with a face.

Embodiment 2

The following description will discuss Embodiment 2 of the presentinvention. For easy explanation, the like reference signs will be givento members each having the like function as a member described inEmbodiment 1, and descriptions on such a member will be omitted.

FIG. 3 shows a flowchart of an image capture processing carried out byan image capture processing device 50 of a twin-lens image capturedevice 1 of Embodiment 2. Main configurations of the twin-lens imagecapture device 1 of Embodiment 2 are identical to those of the twin-lensimage capture device 1 of Embodiment 1 illustrated in FIG. 1. Theflowchart of FIG. 3 differs from the flowchart (FIG. 2) of Embodiment 1in that step S106 is carried out subsequent to step S105 at which animage of a subject is captured by a main image capture section 10 whichhas been adjusted to have an exposure appropriate for a face region.

At step S106, image data which was generated by an auxiliary imagecapture section 20 at a point in time when the face region was detectedat step S103 and image data which was obtained by the main image capturesection 10 at step S105 are synthesized so as to generate synthesizedimage data. Generation of the synthesized image data is carried out byan image processing section 32.

By thus synthesizing images which differ in exposure, it is possible toobtain an image having a dynamic range. Note that synthesis of imageswhich differ in exposure can be carried out by a known method.

Embodiment 3

The following description will discuss Embodiment 3 of the presentinvention. For easy explanation, the like reference signs will be givento members each having the like function as a member described inEmbodiment 1, and descriptions on such a member will be omitted.

FIG. 4 shows a flowchart of an image capture processing carried out byan image capture processing device 50 of a twin-lens image capturedevice 1 of Embodiment 3. Main configurations of the twin-lens imagecapture device 1 of Embodiment 3 are identical to those of the twin-lensimage capture device 1 of Embodiment 1 illustrated in FIG. 1. Theflowchart of FIG. 4 differs from the flowchart (FIG. 2) of Embodiment 1in a processing flow from after face detection is carried out (afterstep S103 in FIG. 2) to when a main image capture section 10 captures animage (step S105 in FIG. 2).

FIG. 4 shows the flowchart of the image capture processing carried outby the image capture processing device 50 of the twin-lens image capturedevice 1 of Embodiment 3.

In Embodiment 3, face detection is carried out by a face detectionsection 40 (step S103), and in addition, an image processing section 32obtains image data of a subject which image data has been generated byan auxiliary image capture section 20, and an AF processing is carriedout so as to detect a focus position of a lens of the auxiliary imagecapture section 20 (step S103′). Note that even in a case where no facehas been detected by the face detection section 40 at step S103, imagedata of the subject which image data has been generated by the auxiliaryimage capture section 20 is obtained by the image processing section 32,and an AF processing is carried so as to detect a focus position of thelens.

Then at step S104, the face detection section 40 notifies the imageprocessing section 32 of a face region, an exposure of the main imagecapture section 10 is adjusted by the capture control section 31 so asto be appropriate for the face region, and then the process proceeds tostep S104′ shown in FIG. 4.

At step S104′ (control step), a position of the lens of the main imagecapture section 10 is moved to the focus position of the lens whichfocus position was calculated at step S103′, and an image is captured bythe main image capture section 10 at step S105.

By performing, as described in Embodiment 3, an AF operation with use ofthe auxiliary image capture section 20 having a high exposure, itbecomes easier for the main image capture section 10 to performautofocus when capturing an image, even in a case where the capturing ofthe image is performed with a low illuminance.

Embodiment 4

The following description will discuss Embodiment 4 of the presentinvention. For easy explanation, the like reference signs will be givento members each having the like function as a member described inEmbodiment 1, and descriptions on such a member will be omitted.

FIG. 5 is a block diagram illustrating a configuration of a twin-lensimage capture device 1 in Embodiment 4. The configuration of Embodiment4 differs from that of Embodiment 1 in terms of a face detection section40 of an image capture processing device 50.

Specifically, the image capture processing device 50 of the twin-lensimage capture device 1 of Embodiment 4 includes a face detection section40 including a smile detection section 41. The smile detection section41 obtains image data outputted from an auxiliary image capture section20, and performs a smile detection processing on the image data so as todetect a smile region of a person who is included in the image. Thesmile detection processing is performed with use a known algorithm.

Upon detection of a smile, the smile detection section 41 simultaneouslyoutputs a timing signal to the capture control section 31 of a controlsection 30.

Upon reception of the timing signal, the capture control section 31controls, at that timing, the main image capture section 10 to capturean image (step S105). The main image capture section 10, as described inEmbodiment 1, captures an image with use of an exposure adjusted so asto be appropriate for the face.

[Software Implementation Example]

Control blocks of the twin-lens image capture device 1 (particularly,the image capture processing device 50) may be realized by a logiccircuit (hardware) provided in an integrated circuit (IC chip) or thelike or may be realized by software as executed by a CPU (CentralProcessing Unit).

In the latter case, the image capture processing device 50 includes: aCPU that executes instructions of a program (program for controlling theimage capture processing device) that is software realizing theforegoing functions; ROM (Read Only Memory) or a storage device (eachreferred to as “storage medium”) storing the program and various kindsof data in such a form that they are readable by a computer (or a CPU);and RAM (Random Access Memory) that develops the program in executableform. The object of the present invention can be achieved by a computer(or a CPU) reading and executing the program stored in the storagemedium. The storage medium may be “a non-transitory tangible medium”such as a tape, a disk, a card, a semiconductor memory, and aprogrammable logic circuit. Further, the program may be made availableto the computer via any transmission medium (such as a communicationnetwork and a broadcast wave) which enables transmission of the program.Note that the present invention can also be implemented by the programin the form of a computer data signal embedded in a carrier wave whichis embodied by electronic transmission.

Embodiments 1 through 4 have each described an example case in whichimage data outputted from the main image capture section 10 is obtained,subjected to an image processing, and displayed on the display section60. Note, however, that the present invention may employ a configurationin which a storage section is provided and (i) image data outputted fromthe main image capture section 10 is stored in the storage section or(ii) image data is displayed on the display section as well as beingstored in the storage section.

Further, although Embodiments 1 through 4 have each described an examplecase in which the main image capture section 10 and the auxiliary imagecapture section 20 detect a subject at step S101, it is only necessaryto employ, in order to enable face detection at step S103, aconfiguration in which at least the auxiliary image capture section 20detects a subject. That is, it is possible to employ a configuration inwhich the main image capture section 10 does not detect a subject.

[Recap]

An image capture processing device 50 in accordance with Aspect 1 of thepresent invention is an image capture processing device including: aface detection section 40 configured to perform face detection so as todetect a face from an image of a subject, the image being captured by afirst image capture section (auxiliary image capture section 20) whichcaptures the image of the subject; and a control section 30 configuredto control, on the basis of a result of the face detection performed bythe face detection section 40, a second image capture section (mainimage capture section 10) to capture an image of the subject, the secondimage capture section being different from the first image capturesection (auxiliary image capture section 20).

According to the above configuration, face detection is always performedwith use of the auxiliary image capture section 20. Accordingly, even ina case where no face is included in an angle of view at first but a facelater comes into the angle of view, the face is successfully detected.This enables an improvement in accuracy of face detection, and allowsobtaining an optimum image in which focus and exposure are adjusted inconformity with a detected face.

More specifically, in Aspect 2 of the present invention, the imagecapture processing device 50 in accordance with above Aspect 1 isconfigured such that the control section 30 (i) controls the first imagecapture section (auxiliary image capture section 20) to have an exposurecondition appropriate for performing the face detection and (ii)controls, on the basis of the result of the face detection performed bythe face detection section 40, the second image capture section (mainimage capture section 10) to have an exposure appropriate for the face.This configuration allows bringing about the above-described effect.

In Aspect 3 of the present invention, the image capture processingdevice 50 in accordance with above Aspect 1 or 2 may be configured suchthat the control section 30 controls the first image capture section(auxiliary image capture section 20) to have an exposure higher thanthat of the second image capture section (main image capture section10).

According to the above configuration, increasing the exposure of theauxiliary image capture section 20 enables facilitating the facedetection.

In Aspect 4 of the present invention, the image capture processingdevice 50 in accordance with any one of above Aspects 1 through 3 may beconfigured such that the first image capture section (auxiliary imagecapture section 20) has a smaller number of pixels than the number ofpixels of the second image capture section (main image capture section10).

The above configuration enables a cost reduction.

In Aspect 5 of the present invention, the image capture processingdevice 50 in accordance with above Aspect 3 may be configured such thatthe control section 30 obtains and synthesizes the image captured by thefirst image capture section (auxiliary image capture section 20) and theimage captured by the second image capture section (main image capturesection 10).

According to the above configuration, synthesizing images which differin exposure allows obtaining an image having a wide dynamic range.

In Aspect 6 of the present invention, the image capture processingdevice 50 in accordance with above Aspect 3 may be configured such thatthe control section 30 (i) calculates a focus position on the basis theresult of the face detection performed by the face detection section 40and with use of an optical system of the first image capture section(auxiliary image capture section 20) and (ii) adjusts an optical systemof the second image capture section (main image capture section 10) tothe focus position calculated.

According to the above configuration, by performing an AF operation withuse of the auxiliary image capture section 20 in a state where theauxiliary image capture section 20 has an exposure higher than that ofthe main image capture section 10, it becomes easier for the main imagecapture section 10 to perform autofocus when capturing an image, even ina case where the capturing of the image is performed with a lowilluminance.

In Aspect 7 of the present invention, the image capture processingdevice 50 in accordance with any one of Aspects 1 through 6 may beconfigured such that: the face detection section 40 includes a smiledetection section 41 configured to detect a smile from the imagecaptured by the first image capture section (auxiliary image capturesection 20); and the control section 30 controls, at timing when thesmile detection section 41 has detected a smile, the second imagecapture section (main image capture section 10) to capture the image ofthe subject with use of an exposure appropriate for the face.

According to the above configuration, an optimum image in which focusand exposure are adjusted in conformity with a face can be obtained attiming at which a smile has been detected.

An electronic device (twin-lens image capture device 1) in accordancewith Aspect 8 of the present invention is an electronic deviceincluding: the above-described image capture processing device 50; thefirst image capture section (auxiliary image capture section 20); andthe second image capture section (main image capture section 10).

The above configuration allows bringing about the same effects as thoseof the above-described image capture processing device 50.

An image capture processing method in accordance with Aspect 9 of thepresent invention is an image capture processing method including: aface detection step of performing face detection so as to detect a facefrom an image of a subject, the image being captured by a first imagecapture section which captures the image of the subject; and a controlstep of controlling, on the basis of a result of the face detectionperformed in the face detection step, a second image capture section tocapture an image of the subject, the second image capture section beingdifferent from the first image capture section.

This allows bringing about the same effects as those of theabove-described image capture processing device 50.

A program, in accordance with Aspect 10 of the present invention, forcontrolling an image capture processing device control is program forcontrolling an image capture processing device, the program beingconfigured to cause a computer to function as each section of the imagecapture processing device 50.

The present invention is not limited to the embodiments, but can bealtered by a skilled person in the art within the scope of the claims.The present invention also encompasses, in its technical scope, anyembodiment derived by combining technical means disclosed in differingembodiments. Further, it is possible to form a new technical feature bycombining the technical means disclosed in the respective embodiments.

REFERENCE SIGNS LIST

-   1: twin-lens image capture device (electronic device)-   10: main image capture section (second image capture section)-   20: auxiliary image capture section (first image capture section)-   30: control section-   31: capture control section (control section)-   32: image processing section (control section)-   40: face detection section-   41: smile detection section-   50: image capture processing device-   60: display section

1. An image capture processing device comprising: a face detectionsection configured to perform face detection so as to detect a face froman image of a subject, the image being captured by a first image capturesection which captures the image of the subject; and a control sectionconfigured to control, on the basis of a result of the face detectionperformed by the face detection section, a second image capture sectionto capture an image of the subject, the second image capture sectionbeing different from the first image capture section.
 2. The imagecapture processing device as set forth in claim 1, wherein the controlsection (i) controls the first image capture section to have an exposurecondition appropriate for performing the face detection and (ii)controls, on the basis of the result of the face detection performed bythe face detection section, the second image capture section to have anexposure appropriate for the face.
 3. The image capture processingdevice as set forth in claim 1, wherein the control section controls thefirst image capture section to have an exposure higher than that of thesecond image capture section.
 4. The image capture processing device asset forth in claim 1, wherein the first image capture section has asmaller number of pixels than the number of pixels of the second imagecapture section.
 5. The image capture processing device as set forth inclaim 3, wherein the control section obtains and synthesizes the imagecaptured by the first image capture section and the image captured bythe second image capture section.
 6. The image capture processing deviceas set forth in claim 3, wherein the control section (i) calculates afocus position on the basis the result of the face detection performedby the face detection section and with use of an optical system of thefirst image capture section and (ii) adjusts an optical system of thesecond image capture section to the focus position calculated.
 7. Theimage capture processing device as set forth in claim 1, wherein: theface detection section includes a smile detection section configured todetect a smile from the image captured by the first image capturesection; and the control section controls, at timing when the smiledetection section has detected a smile, the second image capture sectionto capture the image of the subject with use of an exposure appropriatefor the face.
 8. An electronic device comprising: an image captureprocessing device recited in claim 1; the first image capture section;and the second image capture section.
 9. An image capture processingmethod comprising: a face detection step of performing face detection soas to detect a face from an image of a subject, the image being capturedby a first image capture section which captures the image of thesubject; and a control step of controlling, on the basis of a result ofthe face detection performed in the face detection step, a second imagecapture section to capture an image of the subject, the second imagecapture section being different from the first image capture section.10. A computer-readable non-transitory recording medium on which aprogram for controlling an image capture processing device recited inclaim 1 is stored, the program being configured to cause a computer tofunction as each section of the image capture processing device.